• 吴裕雄--天生自然 JAVASCRIPT开发学习: Break 和 Continue 语句


    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    </head>
    <body>
    
    <p>点击按钮,测试带有 break 语句的循环。</p>
    <button onclick="myFunction()">点击这里</button>
    <p id="demo"></p>
    <script>
    function myFunction(){
        var x="",i=0;
        for (i=0;i<10;i++){
            if (i==3){
                    break;
                }
            x=x + "该数字为 " + i + "<br>";
        }
        document.getElementById("demo").innerHTML=x;
    }
    </script>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    </head>
    <body>
    
    <p>点击下面的按钮来执行循环,该循环会跳过 i=3 的步进。</p>
    <button onclick="myFunction()">点击这里</button>
    <p id="demo"></p>
    <script>
    function myFunction(){
        var x="",i=0;
        for (i=0;i<10;i++){
              if (i==3){
                continue;
            }
            x=x + "该数字为 " + i + "<br>";
          }
        document.getElementById("demo").innerHTML=x;
    }
    </script>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    </head>
    <body>
    
    <script>
    cars=["BMW","Volvo","Saab","Ford"];
    list:{
        document.write(cars[0] + "<br>"); 
        document.write(cars[1] + "<br>"); 
        document.write(cars[2] + "<br>"); 
        break list;
        document.write(cars[3] + "<br>"); 
        document.write(cars[4] + "<br>"); 
        document.write(cars[5] + "<br>"); 
    }
    </script>
    
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/tszr/p/10942473.html
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